Face detection method and related product
A face detection and target face technology, applied in instruments, character and pattern recognition, computer parts and other directions, can solve the problems of low face detection accuracy, low user experience, slow computing speed, etc. The effect of calculating the amount, improving the user experience, and improving the speed
Pending Publication Date: 2020-08-21
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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[0003] At present, the face image is mainly covered by a large number of sliding windows and the transformation of the image pyramid, and then face detection is realized through feature extraction operations and classifiers. However, a large number of calculations lead to slow operation speed, and the face is covered by image pyramid transformation. The image leads to low accuracy of face detection and low user experience
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0030] The terms "first", "second", "third" and "fourth" in the description and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited ...
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The embodiment of the invention discloses a face detection method and a related product, and the method comprises the steps: obtaining a target image, and preprocessing the target image to obtain a preprocessed image; performing a face feature map extraction operation on the preprocessed picture to obtain a first feature map and a second feature map of the target picture; inputting the first feature map into a first feature extraction channel to obtain a first fusion map, and inputting the second feature map into a second feature extraction channel to obtain a second fusion map; performing splicing calculation operation based on the first fusion image and the second fusion image to obtain a target feature image; performing convolution calculation on the target feature map to obtain a target face frame center point coordinate probability map and a target offset; and determining a target face frame in the target picture based on the target face frame center point coordinate probability graph and the target offset. According to the embodiment of the invention, the target face frame is determined according to feature extraction, and the face detection calculation amount is reduced.
Description
technical field [0001] This application relates to the technical field of electronic equipment, in particular to a face detection method and related products. Background technique [0002] With the development of applications such as e-commerce, face recognition has become the most potential biometric authentication method, and face detection is an important part of face recognition. Face detection means that for any given image, a certain strategy is used to search it to determine whether it contains a face. [0003] At present, the face image is mainly covered by a large number of sliding windows and the transformation of the image pyramid, and then face detection is realized through feature extraction operations and classifiers. However, a large number of calculations lead to slow operation speed, and the face is covered by image pyramid transformation. The image leads to low accuracy of face detection and low user experience. Contents of the invention [0004] The em...
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IPC IPC(8): G06K9/00G06K9/62
CPCG06V40/161G06V40/168G06F18/253
Inventor 王多民
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD